WO2020035850A1 - Formulated cannabis oil powder by nanoemulsifycation, methods of producing and uses thereof - Google Patents
Formulated cannabis oil powder by nanoemulsifycation, methods of producing and uses thereof Download PDFInfo
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- WO2020035850A1 WO2020035850A1 PCT/IL2019/050268 IL2019050268W WO2020035850A1 WO 2020035850 A1 WO2020035850 A1 WO 2020035850A1 IL 2019050268 W IL2019050268 W IL 2019050268W WO 2020035850 A1 WO2020035850 A1 WO 2020035850A1
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- Prior art keywords
- powder
- powder according
- maltodextrin
- cannabinoid
- pluronic
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Classifications
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Definitions
- the invention generally relates to formulations of cannabinoids, more specifically formulations as water-dispersible powders containing nanodroplets of a cannabinoid material, methods of producing thereof, as well as dosage forms and uses thereof for clinical purposes.
- Cannabinoids the active ingredients of cannabis, are produced in significantly higher amounts in resin- producing inflorescences of female cannabis plants.
- Various types of cannabis such asC. Sativa, C. lndica,C. Ruderalis may produce more than 100 different types of cannabinoids in various concentrations and proportions.
- the two main cannabinoids, the tetrahydrocannabinol (THC) and cannabidiol (CBD), have been related to a number of biologically important activities in humans, and mammals in general.
- the mammalian endocannabinoid system is a signal transduction system acting predominantly in the brain, and also in peripheral tissues.
- cannabinoid receptors have been identified so far, the most prominent are CB types 1 and 2 (CBi and CB2).
- CBi and CB2 CBi and CB2
- the endocannabinoid system has been implicated in maintenance of the normal mammalian homeostasis, including systems of movement control, pain, appetite, memory, immunity and inflammation, and others. This explains the high therapeutic potential of cannabis-based medicines, and exogenous cannabinoids, and their broad clinical applications.
- Beneficial effects of cannabis have been revealed in a number of clinical conditions such as pain (pain in cancer, fibromyalgia related and neuropathic pain), inflammatory diseases (e.g. inflammatory bowel diseases, Crohn's disease, ulcerative colitis), posttraumatic stress disorder (PTSD), loss of appetite/anorexia, sleep disorders, multiple sclerosis (MS), epilepsy, autism, schizophrenia, and other disorders.
- pain pain in cancer, fibromyalgia related and neuropathic pain
- inflammatory diseases e.g. inflammatory bowel diseases, Crohn's disease, ulcerative colitis
- PTSD posttraumatic stress disorder
- MS multiple sclerosis
- epilepsy autism
- schizophrenia schizophrenia, and other disorders.
- analgesic, antiemetic, antioxidative, neuroprotective and anti-inflammatory effects are only a few among various activities attributed to the two most studied cannabinoids THC and CBD.
- medical cannabis is administered primarily through smoking or consumed orally in the form of oil, cookies, chocolates, etc
- Marinol capsules containing dronabinol, a synthetic A 9 -THC isoform, in sesame oil, have been approved in a number of countries as an antiemetic for cancer patients under chemotherapy and patients with AIDS.
- Cesamet capsules with nabilone, a synthetic THC analog have been approved as a Marinol substitute.
- More recent formulations Namisol tablets with pure THC and Arvisol tablets with pure CBD approved for Alzheimer’s disease and chronic neural pain, and Sativex (nabiximols), an oral spray containing THC and CBD, for multiple sclerosis.
- the present invention provides solid formulations of cannabinoids or cannabis- based extracts in a form of readily water-dispersible fine powders or tablets containing oil droplets of predetermined sizes.
- One of the distinctive features of formulations of the invention is in their ability to recover, upon contact with water or a water-based environment, the same oil droplets, in substantially the same size.
- the inventors have developed a solid-based delivery system derivable from an initial fine- tuned nanoemulsion that is tailored to contain lipophilic nanodroplets of a desired size.
- the conversion of the nanoemulsion to the solid-based delivery system, i.e., powder maintains the integrity, content and size of the nanodroplets. Their integrity, content and size are further maintained when the solid-based delivery system is re-dispersed in water or when it comes into contact therewith.
- the formulations should comprise at least one cryoprotectant such as sucrose, trehalose, or mannitol, at least one surfactant as ammonium glycyrrhizinate, pluronic F-127, F68, and optionally at least one carbohydrate such as maltodextrin and carboxymethyl cellulose (CMC).
- cryoprotectant such as sucrose, trehalose, or mannitol
- surfactant as ammonium glycyrrhizinate
- pluronic F-127, F68 e.glycyrrhizinate
- carbohydrate such as maltodextrin and carboxymethyl cellulose (CMC).
- particle size can be further modulated or controlled by selecting material combinations or by certain steps in the method of production of formulations of the invention, such that the size of the nanodroplets may be pre-tailored to be within 50 and 900 nm. This may be achieved, for example, by employing steps of lyophilization, homogenization and/or sonication to achieve the powder forms.
- the presently described solid formulations may be loaded with an large amounts of the lipophilic/oil fraction; amounts that under some embodiments can be as high as 75% of the powder form or up to as much as 50% of the powder form (w/w). This feature is particularly important in view of the highly lipophilic nature of cannabinoids, their poor water-solubility and lability to thermal and photolytic degradation and oxidation, all making the design of cannabinoid formulations particularly challenging.
- Liquid pharmaceutical formulations of cannabinoids are not always achievable. Despite the expected advantages (e.g., easy to swallow, uniform delivery and rapid onset), such formulations usually require relatively large volumes of solvents. With solid formulations, meant to overcome this disadvantage, dissolution of cannabinoids imposes a critical problem.
- the feature of high loading with respect to the lipophilic/oil fraction containing the cannabinoids, this without alcohols or other water- miscible solvents, or without any solubilizing agents makes the cannabinoid formulations of the invention especially advantageous in terms delivery of therapeutically effectives doses of actives.
- the capability to modify or control loading of the oil fraction would be one way to control doses of actives in a formulation of a certain type, being it a cannabinoid-based (e.g., THC and/or CBD) or a cannabis-based formulation.
- a cannabinoid-based e.g., THC and/or CBD
- this provides a standardized pharmaceutical raw material with known concentrations of cannabis (unlike when dealing with inflorescences).
- the invention provides a solid homogeneous formulation of highly hydrophobic actives, in an administrable form, with relatively high load of actives, while being exempt from co-solvents such as alcohols.
- the formulations of the invention while being solid and compact are at the same time easily dispersible in water, with the actives retaining their properties in the oil phase, providing increased stability.
- formulations of the invention remained stable for a period of 12 months or more.
- the powder formulations of the invention can be further solidified or compressed into a solid form, such as a tablet and films, without affecting their stability and functionality.
- the present invention further provides a method for producing such powder formulations.
- the methods of the invention have been presently exemplified using hemp oil and cannabis oils.
- Methods of the invention can be adapted to include one or more specific cannabinoids, synthetic or isolated from natural sources, and also complete or fractionated extracts of cannabis plants, in various proportions and combinations.
- Another important objective of formulations of the invention is to maximize the potential of an increased bioavailability, especially for oral dosage forms. Achieving an effective oral delivery is essential for any successful therapeutic strategy, in terms of maximizing therapeutic effects, achieving stable and predictable drug plasma levels and pharmaco-dynamic effects, and as a consequence, increased patient compliance.
- Cannabinoids have been proven particularly difficult to deal with due to their limited solubility in plasma and consequently limited bioavailability, and significant first pass effect. Thus there is still an unmet need for effective oral cannabinoid- and cannabis-based formulations, particularly in powder oral forms.
- the cannabinoid formulations of the invention due to their particular physical properties, being lipo- nanospheres of a particular particle (droplets) size, have a potential to overcome these limitations, in terms of increased dissolution or dispersion of actives, increased bioavailability and protection of actives from P-gp metabolism.
- formulations of the invention can be easily adapted to oral dosage forms such as tablets and sublingual tablets or capsules with various controlled doses of actives, i.e., cannabinoids or cannabis extracts.
- Such preparations can comprise additional therapeutic agents tailored for specific therapeutic indications which could benefit from cannabinoids and cannabis-based medicines. They can further comprise minerals, antioxidants, nutrients and vitamins in forms consumed directly with food.
- the powder formulations can be further adapted for other administration methods, such as inhalation methods and devices, by using suitable pharmaceutical excipients.
- suitable pharmaceutical excipients such as inhalation methods and devices.
- the formulations of the invention can be further adapted as creams and aqueous dispersions for topical and transdermal administrations or generally as depositories.
- formulations and dosage forms can be further improved by the addition of permeation enhancers to increase bioavailability, and controlled release agents in the form of a matrix or a coating using know in the art methods.
- Fig. 1A-B shows Cryo TEM analysis of the formulation of the invention for (Fig. 1A) the nanoemulsion (10% in water) with droplet size in the range of 80-120 nm; and (Fig. IB) the dispersed powder (1% in water) with droplet size in the range of 70- 130 nm (see Example 1).
- Fig. 2 shows the effect of surfactant concentration (between 3.2-7.7% w/w) on droplet size of a formulation of the invention (in the range of 251-450 nm) (see Example 5).
- Fig. 3 shows the effect of sonication time (between 5 to 60 min) on the droplet size of the formulation (in the range of 60-220 nm) (see Example 6).
- Fig. 4 shows the effect of high pressure homogenization (between 1-6 runs) on droplet size of the formulation (in the range of l67-l98nm) (see Example 7).
- Fig. 5 shows the effect of hemp oil concentration (between 19-50% w/w) on droplets size of the nanoemulsion (dashed) and dispersed powder (solid) with droplets in the range of 130-190 nm (see Example 8).
- Fig. 7 shows experiments mimicking sublingual dissolution of the HOP and Centrum tablets (see Example 12)
- Fig. 8 shows tablet weight vs. disintegration time comparing the HOP (grey squares) and Centrum pill (black dots) tablets.
- the invention first provides a water-dispersible powder comprising lipophilic nanospheres (or nanodroplets or lipo-nanospheres) having an averaged size between 50 and 900 nm, the nanospheres having an adsorbed layer of at least one solid surfactant and containing a cannabinoid material, wherein the at least one solid surfactant is selected from ammonium glycyrrhizinate, pluronic F-127 and pluronic F68; the powder further comprising at least one solid cryoprotectant selected from sucrose, trehalose and mannitol, and optionally at least one solid carbohydrate selected from maltodextrin and carboxymethyl cellulose (CMC); wherein the nanospheres structure and size is substantially maintained upon dissolution in a water containing environment.
- lipophilic nanospheres or nanodroplets or lipo-nanospheres having an averaged size between 50 and 900 nm
- the nanospheres having an adsorbed layer of at least one solid surfactant
- pluronic F-127 and pluronic F-68 are BASF ethylene oxide/propylene oxide block copolymers of known structures and molecular weights.
- the powder of the invention is a solid form comprising a plurality of material nanospheres, each having a shell of at least one surfactant and containing the cannabinoid material.
- the expression“lipophilic nanospheres... having an adsorbed layer of at least one solid surfactant and containing a cannabinoid material!' refers to the fact that these nanospheres, used interchangeably with nanodroplets or lipo- nanospheres, are material entities that are spherical or substantially spherical in shape, contain a cannabinoid material and surface-adsorbed by a film of the at least one surfactant.
- the nanospheres may have an adsorbed layer consisting of the at least one surfactant or have an adsorbed layer that comprises at least one surfactant as well as an amount of the other material components present in the powder.
- the powder of the invention is derivable from a nanoemulsion that comprises a plurality of oil nanodroplets comprised of the cannabinoid material.
- the nanodroplets are of a size between 50 and 900 nm that is conserved in the solid powder.
- the integrity, content and size of the nanodroplets is maintained.
- nanodroplets integrity, content and size are further conserved when the solid-based delivery system is re-dispersed in water or when it comes into contact therewith.
- the nanodroplets integrity, content and size are unaffected by acidic conditions and therefore powders of the invention may be delivered in vivo, ensuring safe and effective delivery of the nanodroplets cargo at pFl values between 1 and 7.
- powders with pre-tailored populations of oil droplets(nanospheres) of narrow size distributions may be prepared, to meet the target uses.
- the powders of the invention may comprise nanospheres of a size between 50 and 900 nm, or between 50 and lOOnm, or between 50 and l50nm, or between 50 and 200nm, or between 50 and 250nm, or between 50 and 300nm, or between 50 and 350nm, or between 50 and 400nm, or between 50 and 450nm, or between 50 and 500nm, or between 50 and 550nm, or between 50 and 600nm, or between 50 and 650nm, or between 50 and 700nm, or between 50 and 750nm, or between 50 and 800nm, or between 50 and 850nm, or between 100 and l50nm, or between 100 and 200nm, or between 100 and 250nm, or
- the nanospheres have an averaged diameter of between 200 and 400nm, or between 250 and 400nm, or between 250 and 350nm, or between 200 and 500nm, or between 250 and 500nm.
- the nanospheres have an averaged diameter of between 100 and 400nm, or between 150 and 400nm, or between 150 and 350nm, or between 100 and 500nm, or between 150 and 500nm.
- the nanospheres have an averaged diameter of between 200 and 250nm, or between 250 and 300nm, or between 300 and 350nm, or between 350 and 400nm, or between 400 and 450nm or between 450 and 500 nm.
- the nanospheres have an averaged diameter of between 200 and 2l0nm, or between 210 and 220nm, or between 220 and 230nm, or between
- the nanospheres have an averaged diameter of between 210 and 3l0nm, or between 220 and 320nm, or between 230 and 330nm, or between
- the powder of the invention upon dispersion in water, produces nanodroplets (spheres in the submicron scale) with an average size of between 50 and 900nm, being an averaged size that is substantially identical.
- an increase or decrease in the size of the nanodroplets may be achieved upon dispersion.
- a difference between the nanodroplets in the initial emulsion and the those in the dispersed medium may be tailored to about ⁇ 20-30 nm for emulsions with 10% dispersed fraction of the oil droplets and no higher than 100 nm for emulsions with 30% dispersed fractions.
- the exact range can vary as indicated above, e.g., between 50- 100 nm, 100-200 nm, 200-300 nm, 300-400 nm, 400-500 nm, and in certain embodiments more than 500 nm.
- the exact droplets size and size distribution can be controlled by changing the composition of the emulsion or features of the emulsion, such as phase fraction and surfactant concentrations and by changing the preparation parameters such as pressure and number of cycles in case high pressure homogenizer is used for preparing the emulsions.
- the expression“ nanospheres with a substantially same average size” supports the fact that the nanospheres present in the powder conserve their size upon reconstitution of the powder in water or a water containing environment.
- the size is said to be“substantially the same”, namely the average size is identical to that in the powder or is within ⁇ 10% of the original size.
- the powder of the invention comprises sucrose, trehalose or mannitol, a cannabinoid material and further ammonium glycyrrhizinate and maltodextrin.
- the powder comprises pluronic F-127 or pluronic F68, a cannabinoid material and further sucrose and maltodextrin. In some embodiments, the powder comprises sucrose, ammonium glycyrrhizinate, maltodextrin,CMC and a cannabinoid material.
- the powder comprises ammonium glycyrrhizinate, Maltodextrin, sucrose and a cannabinoid material.
- the powder comprises mannitol, ammonium glycyrrhizinate, maltodextrin and a cannabinoid material.
- the powder comprises mannitol, ammonium glycyrrhizinate, maltodextrin, CMC and a cannabinoid material.
- the powder comprises trehalose, ammonium glycyrrhizinate, maltodextrin, CMC and a cannabinoid material.
- the powder comprises trehalose, ammonium glycyrrhizinate, maltodextrin and a cannabinoid material.
- the powder comprises mannitol, pluronic F-127, maltodextrin and a cannabinoid material.
- the powder comprises mannitol, pluronic F-127, maltodextrin, CMC and a cannabinoid material.
- the powder comprises trehalose, pluronic F-127, maltodextrin, CMC and a cannabinoid material.
- the powder comprises trehalose, pluronic F-127, maltodextrin and a cannabinoid material.
- the powder comprises mannitol, pluronic F-68, maltodextrin and a cannabinoid material.
- the powder comprises mannitol, pluronic F-68, maltodextrin, CMC and a cannabinoid material.
- the powder comprises trehalose, pluronic F-68, maltodextrin, CMC and a cannabinoid material.
- the powder comprises trehalose, pluronic F-68, maltodextrin and a cannabinoid material.
- the at least one surfactant may be comprised in the powder in an amount ranging between about 1 and 10% (w/w), more specifically as high as 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10% (w/w) surfactant.
- the amount of the surfactant may be less than 1 % or more than 10%.
- the amount of the at least one carbohydrate in the powder may be between 20 and 40% (w/w).
- the amount of CMC, where used, may be about between 0.1 and 3% (w/w). In some embodiments, the mount of CMC is about 1%.
- powders of the invention comprise an amount of the cannabinoid material in the range of about 10-50% (w/w), more specifically in the range of 10-15%, 15-20%, 20-25%, 25-30%, 30-35%, 35-40%, 40-45%, 45-50% (w/w), or more.
- the cannabinoid material may be a synthetic or natural cannabinoid(s), a cannabis extract(s) or a fraction thereof.
- this term denotes the entire class of chemical compounds, cannabinoid/cannabinoid agonists/cannabinoid- related compounds, acting with various affinities on the endogenous cannabinoid receptors (CB 1 and CB2).
- This group of ligands include the endocannabinoids (produced naturally by humans and animals), phytocannabinoids (found in cannabis and some other plants), and synthetic cannabinoids (manufactured artificially).
- cannabinoid material further refers to the classical cannabinoids originating from or mimicking the natural cannabinoids in a cannabis plant.
- the main classes of the classical cannabinoids are shown in Table 1 below.
- the powders of the invention comprise nanospheres with one or more cannabinoids belonging to one or more of the above classes.
- the powders of the invention comprise nanospheres with extract cannabis oils.
- Extract cannabis oils can be full extracts (FECO), one example of those is Rick Simpson Oil (RSO), or extracts enriched in specific cannabinoids (THC or CBD).
- FECO full extracts
- RSO Rick Simpson Oil
- THC or CBD extracts enriched in specific cannabinoids
- Such extract oils can be obtained from C. Sativa, C. lndica,C. Ruderalis strains, more potent preparations are obtained from female flowers.
- the nanoemulsion comprising the at least one cannabinoid material comprises (a) an aqueous formulation comprising a cryoprotectant, a surfactant and optionally at least one carbohydrate, as defined herein; and (b) an oil comprising a synthetic or a natural cannabinoid, a cannabis extract or a fraction thereof.
- the method comprises:
- a nanoemulsion comprising (a) an aqueous formulation comprising a cryoprotectant, a surfactant and optionally at least one carbohydrate, as defined herein; and (b) an oil (e.g., an oil formulation) comprising a synthetic or a natural cannabinoid, a cannabis extract or a fraction thereof; and
- the method comprises preparing an aqueous phase comprising a cryoprotectant, a surfactant and optionally at least one carbohydrate, as defined above.
- the method comprises preparing an oil phase comprising a synthetic or a natural cannabinoid, a cannabis extract or a fraction thereof.
- the method comprises:
- nanoemulsion obtained, the powder formed, and the emulsion obtained upon dispersion of the powder in water produces nanospheres (nanodroplets) of substantially the same size, being a submicron size, and an average size as recited above.
- the step of preparing the emulsion comprises high pressure homogenization of both phases for at least 1 to 10 runs, more specifically for at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 runs or more.
- the step of preparing the emulsion can involve sonication for at least about 5-60 min, more specifically for at least about 5-10 min, 10-20 min, 20-30min, 30-40 min, 40-50 min, 50-60 min or more.
- the step of preparing the aqueous phase is carried out at room temperature.
- the powders of the invention can be further solidified or compressed into solid forms.
- the solid forms can be tablets, capsules or films, as presently exemplified.
- powders of the invention retain their physical and chemical properties at room temperature for a period of at least 12 months or more, i.e., the powders of the invention remain stable for at least about 6 months, 9 months, 12 months or more at room temperature, they are easily convertible into pharmaceutical preparations of a variety of forms, suitable for a variety of administration modes and for use in a variety of medicinal applications.
- compositions may be solid compositions or may be reconstituted compositions, in which case- in addition to the water-dispersible powders may further comprise a pharmaceutically acceptable buffer or liquid carrier.
- the pharmaceutical compositions of the invention comprise powders with synthetic or natural cannabinoids, cannabinoid combinations, cannabis extracts or fractions thereof.
- the composition of the invention comprise a synthetic or a natural cannabinoid which is one or more of tetrahydrocannabinol (THC), cannabidiol (CBD), cannabinol (CBN), cannabigerol (CBG), cannabichromene (CBC), cannabicyclol (CBL), cannahivarin (CBV), tetrahydrocannabivarin (THCV), cannabidivarin (CBDV), cannabichromevarin (CBCV), cannabigerovarin (CBGV), cannabigerol monomethyl ether (CBGM), and a derivative, a precursor or an acid-form of any of the aforementioned.
- THC tetrahydrocannabinol
- CBD cannabidiol
- CBN cannabino
- cannabinoids cannabigerol-type compounds and differ mainly in the way this precursor is cyclized.
- the classical cannabinoids are derived from their respective 2-carboxylic acids (2-COOH, also denoted with -A) by decarboxylation (catalyzed by heat, light, or alkaline conditions).
- 2-COOH 2-carboxylic acids
- -A 2-carboxylic acids
- decarboxylation catalyzed by heat, light, or alkaline conditions.
- THC-A and CBD-A tetrahydrocannabinol and cannabidiol acid precursors
- the composition of the invention can comprise a full or partial extract in the form of a cannabis oil obtained from C. Sativa, C. lndica, C. Ruderalis strains, flowers and other parts.
- Oil extracts can be made using linseed oil, hemp oil, sesame oil, olive oil (the most common example), castor oil, chia seed oil, cotton oil, corn oil, coconut oil, sunflower oil, soybean oil, canola oil, etc.
- the linseed, castor and sesame oils are particularly advantageous as they contain alpha-linolenic acid, an essential nutrient.
- cannabis-based compositions are in their added content of terpenes, sesquiterpenes, carotenes, flavonoids, being present in various combinations and proportions, and which contribute to absorption, activity and further to flavor-, odor-, and color-imparting properties, in the sense of being more user-friendly.
- compositions of the invention can comprise additional therapeutic agents. This feature is explained in detail below.
- applicable agents e.g., antibiotic, anti epileptic, anti-spastic, anti-inflammatory, analgesic and antipsychotic and others.
- compositions of the invention can further comprise antioxidants, minerals, nutrients, vitamins or combinations thereof, which can be consumed together with food or as food supplements.
- compositions of the invention are particularly advantageous as many vitamins, such as vitamin E, have the same problems of solubility and bioavailability as the cannabinoids.
- compositions of the invention comprise up to about 75%, 60%, or 50% (w/w) actives, more specifically up to 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50% (w/w) actives, and in certain embodiments even more.
- active refers to a cannabis oil or an oil form of the cannabinoid material.
- compositions of the invention can further comprise antioxidants, absorption enhancers, color- and flavor-imparting agents, preservatives, stabilizers, salts, in various combinations.
- Various sweeteners, taste modifiers, antioxidants, preservatives which are well known in the art include taste modifiers such as artificial sweeteners, flavorings as strawberry and peppermint oil, for example, plant sweeteners, sugars, honey, Stevia, steviol, glycosides, citrate, acids, menthol, anise, eucalyptus oil, fennel, natural antimicrobial substances and natural antioxidant (e.g.
- extracts of murta, oregano, rosemary, borage antioxidants such as vitamins E (tocopherol) and C and their derivatives, butylated hydroxy anisole (BHA), butylated hydroxytolune (BHT) recognized as GRAS, and sulfides; any sweetener allowed for oral administration such as sugar, glucose, sucralose, glycine, cyclamate, sucrose, saccharin, fructose, maltose, stevia extract, sodium saccharine; salts such as NaCl, NaHCCb, Na CCh, citrate, and others.
- antioxidants such as vitamins E (tocopherol) and C and their derivatives, butylated hydroxy anisole (BHA), butylated hydroxytolune (BHT) recognized as GRAS, and sulfides
- BHA butylated hydroxy anisole
- BHT butylated hydroxytolune
- any sweetener allowed for oral administration such as sugar, glucose, sucralose, g
- additives can be used, such as various solidifiers and viscosity modifiers, in various doses such as stearic acid, ascorbyle palmitate, palmitic acid, or hexadecanoic acid, polymers, magnesium stearate, cetyl alcohol, cetostearyl alcohols, stearyl alcohol; and specific viscosity enhancers such as polyvinyl alcohol (PVA), polyvinylpyrrolidone (PVP), sodium alginate, PG alginate, polyacrylic acids such as Carbopol, mucoadhesive polymers, Carbophils, celluloses, cellulose-ethers such as hydroxypropylmethyl cellulose (HPMC), hydroxypropyl cellulose (HPC), hydroxyethyl cellulose (HEC), hyaluronic acid (HA), alginic acid, xanthan gum, pectins, carrageenan.
- PVA polyvinyl alcohol
- PVP polyvinylpyrrolidone
- compositions of the invention can further comprise a controlled release agent.
- a controlled release agent This feature is explained in detail further below, in the context of oral dosage forms. In general terms, this feature here encompasses controlled and modifying release agents provided in the form of matrix and/or coating.
- compositions of the invention are adaptable for any type of administration, as known in the medicinal or veterinary sciences.
- Powders as well as reconstituted formulations may be configured or engineered or adapted or selected or used for topical administration, enteral administration (e.g., including all systemic administration routes involving administration via the gastrointestinal tract), or parenteral administration (e.g., including all systemic administration routes, not involving administration via the gastrointestinal tract).
- Non-limiting administration routes effective for administration or powders or reconstituted formulations of the invention include oral, sublingual, mucosal, aerosol, inhalation, parenteral, subcutaneous, intravenous, intramuscular, interperitoneal, rectal and vaginal administrations.
- dosage forms for oral or sublingual administrations comprising the previously described compositions and powders.
- the oral dosage forms of the invention can be generally characterized as comprising at least one synthetic or a natural cannabinoid, a cannabis extract or a fraction thereof.
- the oral dosage forms of the invention can comprise at least one synthetic or natural cannabinoid which is THC, CBD, CBN, CBG, CBC, CBL, CBV, THCV, CBDV, CBCV, CBGV, CBGM, as a derivative, a precursor or an acid-form.
- oral dosage forms of the invention can comprise a cannabis extract or a fraction obtained from a strain C. Sativa, C. Indica, C. Ruderalis or a combination thereof.
- oral dosage forms of the invention can further comprise additional therapeutic agents, minerals, nutrients, vitamins in various concentrations and combinations.
- controlled release refers to a property or a modification enabling to achieve time dependent release, sustained release, prolonged release and also pulse release, i.e., delayed release of the drug.
- the term further relates to gastro-resistance, i.e., a property or a modification enabling to achieve pH-controlled drug release, gastrointestinal targeting, colon delivery, protection of acid-sensitive actives, protection of gastric mucosa from aggressive actives. In this sense, gastro-resistance is also targeted drug release.
- Gastro-resistant coatings and modifications are also known to improve storage stability.
- Improved gastro-resistance and/or controlled release can be achieved by modification of and/or coating using various pharmacological technologies, such as use of poly(meth)acrylates or layering.
- pharmacological technologies such as use of poly(meth)acrylates or layering.
- a well know example of poly(meth)acrylate coating which has been widely used in the pharmacological industry to achieve targeted and controlled drug release is EUDRAGIT®.
- Another important feature of poly(meth)acrylate coating is protection from external influences (moisture) or taste/odor masking to increase patient compliance.
- Certain solid oils can be added to facilitate controlled release, such as mono-, di- and triglyceride oils, in general, and trilaurin, tricaprin, tripalmitin, trimyristin, glyceryl, hydrogenated palm oil distearate, hydrogenated castor oil, hydrogenated vegetable oil, in particular.
- oral dosage forms of the invention can comprise matrix modifying/controlled release materials, which include, although not limited to, glycerides, waxes, fatty acids, methyl acrylate, methylmethacrylate, ethyl cellulose, poly( vinyl alcohol) (PVA), poly( vinyl pyrrolidone) (PVP), starch, polysaccharides, and others.
- matrix modifying/controlled release materials include, although not limited to, glycerides, waxes, fatty acids, methyl acrylate, methylmethacrylate, ethyl cellulose, poly( vinyl alcohol) (PVA), poly( vinyl pyrrolidone) (PVP), starch, polysaccharides, and others.
- oral dosage forms of the invention can be coated with hydroxypropyl methylcellulose, poly(meth)acrylates, methyl acrylate-methacrylic acid copolymers, cellulose acetate, polyvinyl acetate phthalate, and other types of coatings.
- the oral dosage forms of the invention can be provided in the form of a tablet or a capsule, both being the most popular and convenient methods of oral drug delivery.
- a capsule can be coated with a gastro- resistant coating using GRAS-based materials.
- these dosage forms can use a secondary package, such as a blister (PVC/PVDC - Alufoil), a bottle, an aluminum pouch, others.
- a secondary package such as a blister (PVC/PVDC - Alufoil), a bottle, an aluminum pouch, others.
- the above described powders, composition and dosage form of the invention can be applied for the treatment and alleviation of a number of disease and medical conditions, specifically those wherein beneficial effects of cannabinoids or cannabis-based medicines have been previously demonstrated.
- the invention provides a range of therapeutic methods for treating diseases or medical conditions related to beneficial effects of cannabinoids or cannabis, by application of presently described powders, pharmaceutical compositions or dosage forms.
- the therapeutic methods of the invention can be applied to a wide range of human conditions, including inflammatory, neurological, psychiatric disorders, malignancies and further immune, metabolic disorders, nutritional deficiencies, infectious diseases, and types of gastrointestinal disorders, cardiovascular disorders, and various types of pain, including chronic and neuropathic pain.
- a “therapeutically effective amount” (also a pharmacologically or a pharmaceutically or a physiologically effective amount) denotes an amount of the cannabinoid material needed to achieve the anticipated or desired physiological response. The precise amount is dependent on numerous factors, e.g. the type of agent, activity and intended use (e.g. number of doses per day), which can be determined by known in the art technologies. It is understood that the effective amount can be the result of empirical and/or individualized (case-by-case) determination on the part of the treating health care professional and/or individual.
- the therapeutic preparations of the invention, the powders, compositions and dosage forms can comprise therapeutically effective amounts of cannabinoid actives in the range of at least about 1-10 mg, 10-50 mg, 50- 100 mg, 100-150 mg, 150-200 mg, 200-250 mg, and more.
- the therapeutically effective amounts of cannabinoid actives can be in the range of at least about 50-100 mg, 100-150 mg, 150-200 mg, 200- 250 mg, 250-300 mg, 300-350 mg, 350-400 mg, 400-450 mg or 450-500 mg.
- beneficial or desired therapeutic effects refer equally to curative therapy and ameliorating therapy.
- the terms encompass any approach for obtaining beneficial or desired therapeutic effects, which may be established clinically by means of physiological, metabolic or biochemical parameters.
- Beneficial or desired clinical results include, but are not limited to, alleviation of symptoms, diminishment of extent of disease, stabilization of symptoms, delay or slowing of progression, amelioration or palliation of a condition or a symptom, and remission (whether partial or total).
- palliation encompasses herein undesirable manifestations of a physiological condition or a symptom which are lessened and/or a progression which is slowed or lengthened, as compared to the same but untreated condition.
- preparations and methods of the invention involve combination therapies, administered simultaneously or in succession with other methods and drugs (also therapeutic agents).
- Therapeutic agents that are relevant can be, although not limited to General Drug Categories, classified by the FDA according to their clinical effects and applicability to common human disorders: analgesics, antacids, antianxiety drugs, antiarrhythmics, antibacterials, antibiotics, antimicotics, anticoagulants and thrombolytics, anticonvulsants, antidepressants, antidiarrheals, antiemetics, antifungals, antihistamines, antihypertensives, anti-inflammatories, antineoplastics, antipsychotics, antipyretics, antivirals, barbiturates, beta-blockers, bronchodilators, cold cures, cholesterol lowering drugs, corticosteroids, cough suppressants, cytotoxics, decongestants, diuretics, expectorant, hormones, hypoglycemics, immune-suppressive, laxatives, muscle relaxants, sedatives, sex hormones, sleeping drugs, tranquilizer and vitamin supplements, such as omega fatty acids
- an improvement as a result of treatment is identified if there is at least about 5% improvement, or 10% improvement, or at least 25%, or at least 50%, or at least 75%, or at least 100% improvement or more.
- An improvement herein can be interpreted in the sense of individual improvement as well as population improvement.
- a water-dispersible powder comprising lipophilic nanospheres (submicron nanodroplets) containing a cannabinoid material and further comprising:
- cryoprotectant selected from sucrose, trehalose, mannitol,
- At least one surfactant selected from ammonium glycyrrhizinate, pluronic F- 127, pluronic F68,
- carbohydrate selected from maltodextrin and carboxymethyl cellulose (CMC).
- the powder upon dispersion in water the powder produces nanodroplets with a substantially same average size.
- the powder comprises sucrose, trehalose or mannitol and further comprising ammonium glycyrrhizinate and maltodextrin.
- the powder comprises pluronic F-127 or pluronic F68, and further comprising sucrose and maltodextrin.
- the powder comprises sucrose, ammonium glycyrrhizinate, maltodextrin and CMC.
- the cannabinoid material comprises at least one synthetic or a natural cannabinoid, a cannabis extract or a fraction thereof.
- the powder wherein the concentration of a surfactant is in the range of about 3-10% (w/w). In some embodiments, wherein the fraction of lipophilic nanodroplets is in the range of about 10-50% (w/w).
- the powder is in a solidified or compressed solid form.
- the invention further provides a method for producing a water-dispersible powder, the method comprising converting to a powder by lyophilization an emulsion of an oil phase and an aqueous phase; the aqueous phase comprising a cryoprotectant, a surfactant and optionally at least one carbohydrate, as defined herein, the oil phase comprising a synthetic or a natural cannabinoid, a cannabis extract or a fraction thereof.
- the method comprises:
- the method comprises:
- the nanoemulsion obtained in (iv) and the powder in (v), upon dispersion in water, produce nanospheres (nanodroplets) with a substantially identical average size.
- the step of preparing the initial emulsion in (iii) further comprises high pressure homogenization for at least 1 to 10 runs or more.
- the step of preparing the final emulsion in (iv) involves sonication for at least about 5-60 min. In some embodiments, the step of preparing the aqueous phase in (i) is carried out at room temperature.
- the oil phase is in the range of about 10-50% (w/w).
- the powder is in a solidified or compressed solid form.
- the homogenized emulsion was sonicated in an ice bath (Ultrasonic cell crusher SKL-750, SYCLON, Probe 1.1 cm diameter as probe no. 10) for 10 min under the conditions of Amplitude: 90%, ON: 2 sec, OFF: 1 sec.
- the nanoemulsion was transferred to a glass vail and the vail was frozen in a bath of liquid nitrogen for 5 minutes.
- the vail was lyophilized at absolute pressure of ⁇ 1 mbar for 48 h (Labconco freezone 2.5).
- the resultant powder being a dry fine powder, was stored in closed glass vials.
- the powder was dispersed (0.1-1 wt %) in TDW.
- the samples were vortexed for 1-2 min to obtain a translucent emulsion.
- Droplet size of the O/W nanoemulsion was estimated at Z Average:
- Stability The powder containing 10.5% w/w of olive remained stable after at least 9 weeks of observation.
- compositions of the nanoemulsion and powder are presented in Tables 2 and 3. Table 2. Composition of the nanoemulsion
- the nanoemulsions were prepared with different surfactant concentrations in the range of 3.15-7.7% w/w in the powder.
- 0.15-0.35 gr pluronic F-127, 1.9-2.1 gr Maltodextrin, 2 gr sucrose, and 14.3 gr TDW were mixed using a magnetic stirrer for 10 min at 35-40 °C until a complete dissolution, all other components, and homogenization and sonication parameters remained the same.
- the effect on the droplet (particle) size is demonstrated in Fig. 2.
- the nanoemulsions were prepared with 0.25 gr ammonium glycyrrhizinate as surfactant.
- the emulsions were sonicated as in stage IV, Example 1 , for the duration of 5 to 60 min, all other components and homogenization parameters remained the same.
- the effect on the droplet (particle) size is demonstrated in Fig. 3.
- the following formulation was prepared: 0.5 gr Pluronic F127, 4 gr Maltodextrin, 4 gr sucrose, and 28.6 gr TDW were mixed using a magnetic stirrer for 10 min at RT until a complete dissolution.
- 1 gr of the hemp oil was added to the aqueous phase drop ways during homogenization by high shear homogenizer as in stage III, Example 1, this stage was repeated 4 times to obtain a sufficient amount of product for the homogenization step.
- the final emulsion was prepared by F1P homogenizer wherein lOOgr of the obtained emulsions were subjected to homogenization for 1 to 6 runs (cycles). The results are demonstrated in Fig. 4. Droplet size of the O/W nanoemulsion was estimated at the following values:
- a high load formulation (50% hemp oil) was prepared as follows: 2.1 gr ammonium glycyrrhizinate, 13.65 gr Maltodextrin, 14 gr sucrose, and 100.1 gr TDW were mixed as in Example 8. In the next stage, 29.75 gr of hemp oil (50% oil in the powder) was added to the aqueous phase drop ways during homogenization by high shear homogenizer as in Example 8. The final emulsion was prepared by HP homogenizer as in Example 7. Droplet size of the O/W nanoemulsion was estimated at the following values:
- Droplet size after dispersion in water was estimated at Z Average: 181 nm, peak 1 : 114 nm, 41%, peak 2: 303 nm, 53%, peak 3: 1763 nm, 6%, Pdi: 0.193.
- CMC carboxymethyl cellulose
- the following formulation was prepared: 0.3 gr ammonium glycyrrhizinate, 1.95 gr Maltodextrin, 2 gr sucrose, 0.085 gr CMC, (Sigma, ultra-low viscosity, 36038- 4, cas: 9004-32-4), and 14.3 gr TDW were mixed for 10 min at RT until a complete dissolution and acquisition of an aqueous solution.
- 4.165 gr of hemp oil was added to the aqueous phase, homogenized drop ways during homogenization by high shear homogenizer as in Example 1 for the duration of 10 min, followed by sonication as in Example 7.
- Droplets size of the O/W nanoemulsion was estimated at Z Average: 145.7 nm peak 1 : 30nm, 4%; peak 2: 100 nm, 49%; peak 3: 307 nm, 47%, Pdi: 0.161 ; and after dispersion in water at Z Average: 190 nm, peak 1: 180 nm, 94%, peak 2: 963 nm, 3%, peak 3: 5l5lnm, 3%, Pdi: 0.322.
- the presently described tablets were prepared from the powder obtained in Example 7 using a tablets compresser (PIKE Technologies, CrushIR TM, under 9-9.5 tons), certain illustrations thereof are provided in Fig. 6.
- a tablets compresser PIKE Technologies, CrushIR TM, under 9-9.5 tons
- Each 300 mg or 650 mg tablet contained the hemp oil powder formulation of the invention (HOP), and additional functional agents from state of the art in respective concentrations.
- HOP hemp oil powder formulation of the invention
- One optional application of such tables is for sublingual administration. Certain examples of the produced tablets are given below :
- Tablet 1 300/650 mg of 10.5% hemp oil powder (HOP)
- the tablets were subjected to DLS measurements in order to evaluate droplets size, which revealed that for all types of tables the droplets size were still in the nanometric range, e.g., 250-290 nm.
- Disintegration profiles of the tablets were further studied comparing HOP table No. 8 (see Example 11) and Centrum Junior sublingual tablet. Both types of tablets, each 300 mg, were immersed in TDW 37°C under vigorous shaking (see Fig.7). Tablets were removed from water every 2 min, excess liquid was absorbed into paper, and tablets were weighed.
- three different redispersed emulsions were prepared as follows: 15 mg of cannabis oil powder, (contains 30% oil in powder), were dispersed, by a 20 second of vortex, in 3 ml of aqueous medium to obtain emulsion concentration of 0.5% w/w of the powder in the water.
- the pH of the first aqueous medium was 1.2, mimicking stomach conditions.
- the pH of the second aqueous medium, distilled water, was 5.5 and the pH of the third aqueous medium was 6.8, mimicking intestines conditions.
- one droplet of the dispersed emulsion was mixed with 2 ml of the certain aqueous medium and the sample was measured by DLS zetasizer equipment at To and after 24h. Each sample was prepared in duplicate and measured in 3 cycles for each sample.
- Formulation comprising Cannabis oil, 19% oil in powder.
- the final powder contains 8 mg THC/gr and 2 mg CBD/gr.
- the following exemplary formulation was prepared: 1.44 gr Pluronic F127, 8.5 gr Maltodextrin, 9.6 gr sucrose, one stevia tablet, weigh 82 mg which contains 12 mg of stevia dissolved in 2 gr of worm water and 67 gr TDW were mixed using a magnetic stirrer for 10 min at RT until a complete dissolution.
- 4.56 gr of the cannabis oil were added to the aqueous phase drop ways during homogenization by high shear homogenizer as in stage III, Example 1.
- the final emulsion was prepared by HP homogenizer as in Example 7 but with microfluidizer, M110P technology, equipment. Droplet size of the O/W nanoemulsion was estimated at the following values:
- the lyophilization step was as in stage V, Example 1. Droplet size after dispersion in water was estimated at Z Average: 224 nm peak 1: 233 nm, 100%, Pdi:
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
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Abstract
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Priority Applications (10)
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AU2019322212A AU2019322212B2 (en) | 2018-08-13 | 2019-03-11 | Formulated cannabis oil powder by nanoemulsifycation, methods of producing and uses thereof |
JP2021547984A JP2021535935A (en) | 2018-08-13 | 2019-03-11 | Formulated cannabis oil powder by nano-emulsification, its manufacturing method, and its use |
BR112021009869A BR112021009869A2 (en) | 2018-08-13 | 2019-03-11 | Cannabis oil powder formulated by cationic nano-emulsification, production methods and uses of this |
US16/958,341 US11712430B2 (en) | 2018-08-13 | 2019-03-11 | Formulated cannabis oil powder by nanoemulsification, methods of producing and uses thereof |
EP19714807.5A EP3716946A1 (en) | 2018-08-13 | 2019-03-11 | Formulated cannabis oil powder by nanoemulsifycation, methods of producing and uses thereof |
CA3086887A CA3086887A1 (en) | 2018-08-13 | 2019-03-11 | Formulated cannabis oil powder by nanoemulsifycation, methods of producing and uses thereof |
CN201980067584.5A CN113473965A (en) | 2018-08-13 | 2019-03-11 | Cannabis oil powder formulated by nanoemulsification, methods of production and uses thereof |
IL275430A IL275430A (en) | 2018-08-13 | 2020-06-17 | Formulated cannabis oil powder by nanoemulsifycation, methods of producing and uses thereof |
CONC2021/0007647A CO2021007647A2 (en) | 2018-08-13 | 2021-06-10 | Cannabis oil powder formulated by nanoemulsification, production methods and uses thereof |
US18/209,954 US20230321031A1 (en) | 2018-08-13 | 2023-06-14 | Formulated Cannabis Oil Powder By Nanoemulsifycation, Methods Of Producing And Uses Thereof |
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IL261132 | 2018-08-13 | ||
IL261132A IL261132A (en) | 2018-08-13 | 2018-08-13 | Formulated cannabis oil powder by nanoemulsifycation, methods of producing and uses thereof |
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US16/958,341 A-371-Of-International US11712430B2 (en) | 2018-08-13 | 2019-03-11 | Formulated cannabis oil powder by nanoemulsification, methods of producing and uses thereof |
US18/209,954 Continuation US20230321031A1 (en) | 2018-08-13 | 2023-06-14 | Formulated Cannabis Oil Powder By Nanoemulsifycation, Methods Of Producing And Uses Thereof |
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WO2020035850A1 true WO2020035850A1 (en) | 2020-02-20 |
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PCT/IL2019/050268 WO2020035850A1 (en) | 2018-08-13 | 2019-03-11 | Formulated cannabis oil powder by nanoemulsifycation, methods of producing and uses thereof |
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US (2) | US11712430B2 (en) |
EP (1) | EP3716946A1 (en) |
JP (1) | JP2021535935A (en) |
CN (1) | CN113473965A (en) |
AU (1) | AU2019322212B2 (en) |
BR (1) | BR112021009869A2 (en) |
CA (1) | CA3086887A1 (en) |
CO (1) | CO2021007647A2 (en) |
IL (2) | IL261132A (en) |
WO (1) | WO2020035850A1 (en) |
Cited By (7)
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WO2020220141A1 (en) * | 2019-05-02 | 2020-11-05 | Betterlife Pharma Inc. | Cannabinoid stock transdermal formulations |
WO2022024126A2 (en) | 2020-07-29 | 2022-02-03 | Karnak Technologies, Llc | Oral compositions of lipophilic diety supplements, nutraceuticals and beneficial edible oils |
WO2022024129A1 (en) * | 2020-07-29 | 2022-02-03 | Karnak Technologies, Llc | Improved formulations of lipophilic subtances for cosmetic uses |
WO2022024127A1 (en) | 2020-07-29 | 2022-02-03 | Karnak Technologies, Llc | Pharmaceutical compositions for improved delivery of therapeutic lipophilic actives |
WO2022035682A1 (en) * | 2020-08-14 | 2022-02-17 | Lieberman Ori | Dosing capsule made from cannabis-derived resin and methods of making the same |
EP3996695A4 (en) * | 2019-08-12 | 2023-03-15 | Tenshi Kaizen Private Limited | Cannabidiol orally disintegrating tablets |
US11813243B2 (en) | 2019-07-31 | 2023-11-14 | Riv Capital Us Services Llc | Water soluble cannabis composition |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CA3114085A1 (en) * | 2021-04-05 | 2022-10-05 | MEC11S Inc. | Composition comprising cannabis extracts and method of manufacturing same |
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WO2020220141A1 (en) * | 2019-05-02 | 2020-11-05 | Betterlife Pharma Inc. | Cannabinoid stock transdermal formulations |
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WO2022024126A2 (en) | 2020-07-29 | 2022-02-03 | Karnak Technologies, Llc | Oral compositions of lipophilic diety supplements, nutraceuticals and beneficial edible oils |
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WO2022035682A1 (en) * | 2020-08-14 | 2022-02-17 | Lieberman Ori | Dosing capsule made from cannabis-derived resin and methods of making the same |
Also Published As
Publication number | Publication date |
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US11712430B2 (en) | 2023-08-01 |
JP2021535935A (en) | 2021-12-23 |
BR112021009869A2 (en) | 2022-05-17 |
IL261132A (en) | 2018-11-04 |
AU2019322212A1 (en) | 2021-04-08 |
EP3716946A1 (en) | 2020-10-07 |
IL275430A (en) | 2020-08-31 |
US20210059975A1 (en) | 2021-03-04 |
US20230321031A1 (en) | 2023-10-12 |
CN113473965A (en) | 2021-10-01 |
CO2021007647A2 (en) | 2021-08-30 |
AU2019322212B2 (en) | 2022-09-29 |
CA3086887A1 (en) | 2020-02-20 |
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